Home / 2,177.36-3,264.15-1,561.76

Finding the Fourth Proportional to 2,177.36, 3,264.15 and 1,561.76

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Solution

The fourth proportional to 2,177.36, 3,264.15 and 1,561.76 is: 2,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.36 : 3,264.15 = 1,561.76 : x
  2. Step 2: Convert to fraction form
    2,177.36/3,264.15 = 1,561.76/x
  3. Step 3: Cross multiply
    2,177.36x = 3,264.15 × 1,561.76
  4. Step 4: Simplify right side
    2,177.36x = 5,097,818.90
  5. Step 5: Solve for x
    x = 5,097,818.90/2,177.36
  6. Step 6: Final answer
    x = 2,341.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.